River Hamble - Mercury Yacht Harbour Rainfall ForecastUnited KingdomSEHampshireRiver Hamble - Mercury Yacht HarbourToday 15 May50%Sat 16 May80%Sun 17 May35%Mon 18 May85%Tue 19 May85%Wed 20 May45%River Hamble - Mercury Yacht Harbour rainfall forecast issued yesterday at 7:37 pm. Next forecast at approx. 9:37 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Dean Hill (Wiltshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads